Question

1. When the length if a conductor is increased to double, then its resistivity ..
2.the resistance of conducting wire .Proportional to its length.
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Answer 1

Answer:

answer of 1st question is no change.answer of 2nd question is 'directly'.

Explanation:

1st. Because restivity depends upon nature and temperature of material and not its length.

2nd because resistance=(ro)L/A . So resistance is directly proportional to Length and Inversely proportional to area.

Hope it will help